Firefox是市场上第二受欢迎的浏览器，但有时它会产生问题。其中一个问题是Firefox无法打开。这种情况有2种情况。在第一种情况下，Firefox不会打开，但会在后台运行。在第二种情况下，应用程序也不会在后台打开。这可能是由于Firefox文件丢失或损坏、加载项有问题、用户配置文件损坏或某些驱动程序问题造成的。

Firefox 无法打开或启动

当您尝试关闭Firefox会话时，会出现^(Firefox)Firefox在后台运行的情况，但实际上并没有关闭。既然您知道了潜在原因，如果Firefox无法在您的 Windows PC 上打开或启动，请尝试以下建议来解决问题：

检查任务管理器^{(Task Manager)}并杀死Firefox进程（如果打开）
删除或禁用一些附加组件
删除 Firefox 启动缓存
重置火狐
重新安装火狐

依次执行以下解决方案以解决问题。

火狐浏览器打不开

1]检查任务管理器^{(Check Task Manager)}并杀死Firefox进程（如果打开）

Firefox 无法打开或启动

按 CTRL+ALT+DEL 打开“安全选项^{(Security Options)}”菜单。从列表中选择任务管理器^{( Task Manager)}将其打开。

检查正在运行的进程列表。如果您在列表中找到 Firefox，请右键单击它并选择结束进程^{( End process)}以将其终止。

尝试再次打开Firefox，它会工作。

2]删除^(Remove)或禁用有问题的附加组件

禁用可疑扩展

已知有缺陷^(Faulty)的加载项会导致Firefox浏览器出现问题。但是，由于您根本无法打开浏览器，因此很难解决该问题。

在这种情况下，请尝试在按下SHIFT按钮的同时打开Firefox 。这将以安全模式^{(Safe Mode)}打开浏览器（如果有的话）。

然后通过在地址栏中输入about:addons打开加载项页面。^{(about:addons)}

在“扩展^(Extensions)”选项卡中，禁用任何未经验证、可疑或鲜为人知的扩展。

现在尝试以正常模式打开Firefox并检查它是否正常工作。^(Firefox)

3]删除Firefox启动缓存

清除Firefox启动缓存

删除Firefox用户配置文件启动数据的过程如下：

打开资源管理器并导航到：

C:\Users\<username>\AppData\Local\Mozilla\Firefox\Profiles\p6kmzwky.default-release\startupCache

这里的<username>必须是您自己的，名称中的“ p6kmzwky ”数字可能会有所不同。

清除startupCache文件夹中的所有文件。

或者，您可以about:support在Firefox地址栏中输入并按 Enter^(Enter)。

清除启动缓存火狐

在打开的页面上，按清除启动缓存^{(Clear Startup Cache)}按钮。

重启火狐看看。

4]重置Mozilla Firefox

如果您没有解决问题，则问题可能出在Firefox应用程序本身。在这种情况下，您可以考虑重置 Mozilla Firefox 应用程序。您可能需要以安全模式启动 Firefox^{(start Firefox in Safe Mode)}。这样做会重置浏览器中的许多设置，这些设置您可能会随着时间的推移而搞砸。

5]卸载Firefox^{(Uninstall Firefox)}，然后删除所有残留文件夹

如果与Firefox^(Firefox)浏览器关联的某些文件已损坏，您可能会考虑卸载浏览器，然后删除所有文件。应该注意的是，这样做不会损害存储在云上的任何信息。

该应用程序可以稍后重新安装。

Press Win+R打开运行^(Run)窗口并键入命令appwiz.cpl。按 Enter 打开“程序和功能^{(Programs and Features)}”菜单。

右键单击Mozilla Firefox并选择卸载^(Uninstall)。

卸载火狐

完全卸载 Firefox 后，重新启动系统。^(Firefox)

转到文件资源管理器^{( File Explorer)}中的路径C:\Program Files并找到Mozilla Firefox文件夹。

右键单击它并选择Delete。您需要管理员权限。

删除火狐文件夹

C:\Program Files (x86)重复相同的过程。

您现在可以从公司网站再次下载并安装它。

Hope it helps!

Firefox will not open or launch on Windows 11/10

Firefox is the second-most popular brоwser in the market, yet at times, it сan create іssues. One such issue iѕ when Firefox won’t opеn. There are 2 cases for this condition. In the first case, Firefox won’t open but will be running in the background. In the second case, the application won’t open in the background either. This can be сaused by mіssing or corrupt Firefox files, problematic add-ons, corrupted user profile, or an issuе with some driver.

Firefox will not open or launch

The case with Firefox running in the background occurs when you try closing a Firefox session, but it doesn’t actually close. Now that you know the potential causes, if Firefox does not open or launch on your Windows PC try these suggestions to fix the issue:

Check the Task Manager and kill the Firefox process if open
Remove or disable some add-ons
Delete Firefox Startup cache
Reset Firefox
Reinstall Firefox

Proceed with the following solutions sequentially to troubleshoot the problem.

Firefox browser not opening

1] Check Task Manager & kill the Firefox process if open

Firefox will not open or launch

Press CTRL+ALT+DEL to open the Security Options menu. Select Task Manager from the list to open it.

Check the list of running processes. If you find Firefox in the list, right-click on it and select End process to kill it.

Try opening Firefox again, and it will work.

2] Remove or disable the problematic add-ons

Disable suspicious extensions

Faulty add-ons are known to cause problems with the Firefox browser. However, it would be difficult to resolve the issue since you cannot open the browser at all.

In such a situation, try opening Firefox while pressing the SHIFT button. This will open the browser in Safe Mode (if at all it does).

Then open the add-ons page by entering about:addons in the address bar.

In the Extensions tab, disable any unverified, suspicious, or less known extension.

Now try opening Firefox in normal mode and check if it works right.

3] Delete Firefox Startup cache

clear firefox startup cache

The procedure to delete the Firefox user profile startup data is as follows:

Open Explorer and navigate to:

C:\Users\<username>\AppData\Local\Mozilla\Firefox\Profiles\p6kmzwky.default-release\startupCache

Here the <username> has to be your own and the ‘p6kmzwky‘ digits in the name may vary.

Clear all the files in the startupCache folder.

Alternatively, you may type about:support in Firefox address bar and hit Enter.

clear startup cache firefox

On the page which opens, press the Clear Startup Cache button.

Restart Firefox and see.

4] Reset Mozilla Firefox

If you didn’t resolve the issue, the problem could be with the Firefox application itself. In such a case, you could consider resetting the Mozilla Firefox application. You may need to start Firefox in Safe Mode. Doing so will reset a lot of settings in the browser that you might have messed up over time.

5] Uninstall Firefox and then delete any residue folders

If some files associated with the Firefox browser have gone corrupt, you might consider uninstalling the browser and then deleting all files. It should be noted that by doing so, you would not harm any information stored on the cloud.

The application can be re-installed later.

Press Win+R to open the Run window and type the command appwiz.cpl. Press Enter to open the Programs and Features menu.

Right-click on Mozilla Firefox and select Uninstall.

Uninstall Firefox

Once Firefox is completely uninstalled, restart the system.

Go to the path C:\Program Files in the File Explorer and locate the Mozilla Firefox folder.

Right-click on it and select Delete. You would need administrator permission for it.

Delete Firefox folder

Repeat the same process for the path C:\Program Files (x86).

You can now download and install it again from the company’s website.

Hope it helps!

旭郭

About the author

电话是人们可以拥有和使用的最通用的工具之一。它允许人们与他人交流、访问互联网以及做很多其他事情。使用 iPhone 或 Android 设备，您甚至可以观看视频和下载音乐。手机也非常适合拍照、上网、听音乐等。

Firefox 无法在 Windows 11/10 上打开或启动

Firefox 无法打开或启动

火狐浏览器打不开